Davis County, UT

ZIP 84056

In ZIP 84056, 5 of the 12 things we check have at least one part graded D or F.

• Drinking water: Hill Air Force Base meets every EPA legal limit; 10 contaminants are above health goals, led by arsenic at 229× California’s Public Health Goal.
• Nearest Superfund site: Hill Air Force Base, 0.4 miles away (2 within 10 miles).
• Largest share of modeled toxic air from industry: Shaw Clearfield LLC (53%), mostly chromium.
• Fine particles (PM2.5) average 7.5 µg/m³; the WHO guideline is 5 and the EPA annual standard is 9.
• About 15,863 kg of agricultural pesticides are applied in the county each year.

Grades for ZIP 84056

• Superfund sites nearbyF
• Factories and industrial sitesD
• Oil and gas wellsA
• Parks and nature nearbyD
• Air qualityC
• Drinking water qualityB to D
• Pesticide useB to C
• Neighborhood health statusA to B
• Past wildfire impactsA
• Past flood impactsA
• Noise levelsA to D
• Radiation signalsB to C

Based on 3 census tracts · compiled October 25, 2026 · how each grade works and its sources

Loading the full report, with every source…